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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Firefox is made by Mozilla Corporation, which is wholly owned by the not-for-profit Mozilla Foundation. The Foundation is the parent organization; the Corporation develops Firefox with help from the wider Mozilla community.
Who owns Firefox?
Firefox’s official FAQ gives the direct answer: “Firefox is made by Mozilla Corporation, a wholly owned subsidiary of the not-for-profit Mozilla Foundation, and is guided by the principles of the Mozilla Manifesto.” Mozilla’s organizations page describes the Corporation as working with the community to develop software that advances Mozilla’s principles.
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How the Mozilla organizations fit together
| Organization or group | Role in Firefox |
|---|---|
| Mozilla Foundation | Parent owner and nonprofit governance organization. Mozilla describes it as a California nonprofit corporation exempt from federal income taxation under IRC 501(c)(3). Mozilla Organizations. |
| Mozilla Corporation | The Foundation’s wholly owned taxable subsidiary and the organization that makes Firefox. It develops software with the community. Mozilla Organizations; Firefox FAQ. |
| Firefox contributors and community | Participate in development and related community work; participation does not make contributors owners. Mozilla also notes that some community member organizations are independent and have no official relationship with the Foundation. Mozilla Organizations. |
Does a technology company own Firefox?
Mozilla’s stated ownership chain is Mozilla Foundation → Mozilla Corporation → Firefox. That is not the same as ownership by a commercial technology company. The Foundation owns the Corporation; the Corporation develops Firefox with community participation. Mozilla’s current organizational overview also identifies Mozilla Corporation as the organization that makes Firefox.
The parent’s nonprofit status does not mean Firefox has no commercial revenue or that Foundation staff alone build the browser. Mozilla’s description of its organizations distinguishes the nonprofit parent from its taxable subsidiary and describes the Corporation’s work with the community. Mozilla’s 2025 report says the Mozilla entities are owned and controlled by a nonprofit parent and that profits will be available to support and expand nonprofit activities; this is Mozilla’s own account of its structure and goals. State of Mozilla 2025.
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Does the Foundation fund Firefox only through donations?
No conclusion about Firefox’s funding mix follows from the Foundation’s nonprofit status alone. Mozilla publishes annual reports, Form 990 filings, audited financial statements, and governance documents; its annual reports and financials index lists the 2024 documents and earlier material. Consult the relevant filings for detailed financial figures rather than assuming a particular revenue source or share.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What Mozilla says about Firefox’s reach
Mozilla Corporation’s 2025 report says it is trusted by over 200 million people. That is the Corporation’s stated figure in its report, not an independently measured user count. The same report identifies growing Firefox as a leading aim for Mozilla Corporation. State of Mozilla 2025.
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- Product Identifiers ISBN-10 0385073534 ISBN-13 9780385073530
- Key Details Author Inc. Staff Foxfire Fund Number Of Pages 384 pages
- Series Foxfire Format Paperback Publication Date 1972-02-17 Language English Publisher Knopf Doubleday Publishing Group
- Additional Details Copyright Date 1972 Illustrated Yes
- Dimensions Weight 18.6 Oz Height 1 In. Width 6 In. Length 9.2 In.
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